Upgrading Corosync and Pacemaker From Squeeze To Wheezy

Configuration

Go into the cluster resource manager

Set the cluster in maintanance mode

Commit the change

Exit the cluster resource manager

Upgrade

Now we can upgrade the distribution from squeeze to whezzy.

Post Process

Reinstall pacemaker, this is neccesary because the pacemaker package was removed on the upgrade process.

If both nodes are upgraded, restart corosync on both nodes

Remove the maintanance mode, go into the cluster resource manager





Remove maintanance mode

Commit the change

Exit the cluster resource manager